Drupal 7 port

Yep. I'll be updating to Drupal 7 at some point in the next few months.

Well, I've got some code, but the validation and processing aren't working yet. I'm struggling a bit with all of the Field API changes for D7. Please feel free to start posting patches if anyone else wants to assist with the upgrade to D7.

The dev release should be working and validating pretty well at this point. The main other task that I need to complete is getting it working with the new Taxonomy module (which now uses Field API also). Content Taxonomy module doesn't look like it's going to exist in D7 because it doesn't really need to.

Is there any word on using Multiselect as a form element in a form created by other developers for Drupal 7?

thanks,
kevin

Did we ever get this working with taxonomy for D7? Would be nifty, and would be the final nail in the coffin of primary term module.

No progress on Taxonomy integration yet. I still need to find some time to work on that. If anyone else beats me to it, please start posting patches!

Taxonomy integration is done. Now for the ultimate task: the one mentioned by kmoylan above. Generalizing this so that it can be used in FAPI forms...

Just added support for the non-core CCK fields user_reference and node_reference.

I've got the Form API integration done. I've also added an example module that shows developers how to interact with the Multiselect form element.

@kmoylan Please let me know if you have a chance to test this functionality.